Steam-shovel-car underframe.



T. E. ADAMS & C. H. HOWARD.

STEAM SHOVEL CAR UNDERPRAME.

APPLICATION FILED MAY 11,1908.

Patented Deo. 1

UNITED sTATEs PATENT oEEIcE.

THOMAS E. ADAMS, OF PINE BLUFFL ARKANSAS, AND CLARENCE H. HOWARD, OF ST. LOUIS, MISSOURI, ASSIGNORS TO LOCOMOTIVE TENDER FRAME COMPANY, OF ST. LOUIS, MIS- SOURI, `A CORPORATION OI DELAWARE..

STEAM-SHOVEL-CAR UNDEIRJE'RAIME.-

Specification of Letters Patent.

Patented Dec. 1, 1908.

To all whom it 'may concern:

Be '1t known that we, THOMAS United States, residing, respectively, at line Bluff, in the county of Jefferson and State of Arkansas; and at St. Louis, in the State of Missouri, have invented a new and useful Improvement in Steam-Shovel-Car Underframes, of which the following is a specification.

Our invention relates to a steam shovel car underframe, and has for its objectto simplify construction andto provide a light, strong, rigid. and compact metallic underframe specially adapted for the direct attachment thereto of the steam engine and boiler. dei-rick and other operating mechanism ot' the shovel without the use of separately constructed base-pieces or supports ordinarily used in fixing tl 1 esaid parts to the underframe.

'lhe invention consists in features of novelty as hereinafter described and claimed, reference being had to the accompanying drawing forming partof this specification, whereon, l

Figure 1, is a top plan view of our improved steam shovel car underframe; Fig. 2, a side elevation thereof partly broken away, and Figs. 3, and 4, vertical transverse sections to enlarged scale through the underframe onlines 3, 3, and 4. 4, in Fig. 1.

Like letters and numerals of reference note like parts in all the figures.

a represents our improved steaml shovel car underframe which isA preferably composed of cast steel integral throughout and similar in general configuration -and arrangement of its component members. or body, to the well-known cast metal underframe of a `locomotive, engine, tender. or railroad car. the underframe a in the present case consisting of two side longitudinal outwardly flanged channelmembers 1 and two middle longitudinal outwardly flanged channel members 2, intermediate to the side members 1, the longitudinal members 1 and 2 being united together at oneend by a transverse;outwardly flanged channel member 3. adapted to form the 'frontend-sill, and at their other end by a similar transverse member 3 adapted to form the rear end sill of the underfram'e a.

E. ADAMS.

vand CLARENCE H. HOWARD, citizens of the 3, 3', the longitudinal members 1 and 2 are united together by a transverse I-shaped member b, b', respectively, adapted to form the body-bolster of the car, the rear bodybolster b being also adapted for the application thereto of a. suitable draft-gear. Furthermore, the longitudinal members 1 and 2, are united together at suitable distances apart between the body-holsters b, b', by a series of transverse members 4 and 5, which are suitably shaped in cross section and adapted to strengthen the underframe a and reinforce the base-plates cast thereon, and

forming parts of our invention, as hereinafter more particularly described.

In (or on) the outer face of each side longitudinal member l adjacent to the front end sill 3 and preferably in alinernent with the front body-bolster b, is formed a hori` zontally arranged jaw 6 which is adapted to receive the inner end of one of the jack-arms 'c by which `the car is held steadily in position during the operation of the steam shovel in the usual well-known manner, the sides 6 of the jaw 6, which in the present case are formed by the outward extension of the corresponding tlanges of the side member 1, being perforated vertically for the passage of a pin 7 therethrough and through the inner end of the jack-arm c. which is thereby pivoted and movable radially to the pin 7 in a horizontal plane, so that when not in use it can be swung inward against the side ofthe underframe a.

Extending between and unitingthe front lend sill 3. the front body-bolster b, andthe two middle longitudinal members 2 together at the top of the underframe a is a floor-plate S whichin the present case is flush with, and forms a continuation of the top flanges of the said members. but may be above the topof the-underframe a if desired, and on`the plate 8 in central alinenient with the longitudinal center of the underframe a is formed a circular. block 9- which is adapted to support andform the pivot bearing of the -derrick boom. while on the top of each side longitudinal member l adjacent to the jaw 6 .is formed au upright jaw 10 having its sides 10 perforated. horizontally for receiving the pivot vpin (not shown) of the derrick post or mast.

Formed on and uniting one of the side At a suitable distance from leach end sill i, longitudinal members to the corresponding middle longitudinal member 2 adjacent to the front body-bolster b is a base-plate 12 which is -adapted for the. attachment thereto of the brackets to which the operating levers of the derrick hoisting drum are fulcrumed, while on eachmiddle longitudinal member 2 adjacent to the plate 12 is formed a baseplate 13 for the attachment thereto of one of the hoisting drum bearing frames.

Extending along and partway across the top of the underframe a, between and uniting one ofthe side longitudinal members 1, the middle longit middle transverse members 5 together, is formed a base-plate 14 which is adapted to support, and for the attachment thereto of, the steam engine (or other suitable motor) and its appurtenances, a similar plate 15 being formed along and artway across the top of the underframe a etween, and unit- 'ing the other side longitudinal member 1.

the corres ending middle longitudinal member 2, and) the transverse members 4 and 5 adjacent to the rear body-bolster b together, and adapted for the/ sup ort, and attachment thereto of, the auxi iary engine used for swinging the derrick boom in the operation of the steam shovel, the boiler (or other source of power) for supplying thc said engines with steambeing supported on and attached partly to the plate 15, but mainly to the longitudinal members l and 2 adjacent thereto, and to the rear bodybolster b.

By the above construction in which the component longitudinal and transverse members, or body, of the underframe a with the jaws and base-plates combined therewith as described, are collectively integral, "a strong, rigid, and durable underframe is produced adapted to sup ort the different relative weights, and to istribute the different unctional stresses of the various 'parts of the steam shovel apparatus uniudinal members 2, and' the formly therethrough .with fewer parts and less liability toV fracture than an ordinary steam shovel frame.

What we claim as our invention and de- V the character described, the combination with the component members or body of the underframe, of a jaw having its sides integral with the said body and perforated horizontally for the hinge-pin of one of the derrick masts, substantially as described.

3. In a steam shovel car underframe of the character described, the combination with the component members or body of the underframe, of a base-plate integral with the said body and adapted for the attachment thereto of the fulcrum brackets for the operating levers ofthe hoisting drum, substantially as described.

4. In a steam shovel car underframe--of the character described. vthe combination with thecomponent members or body of the undeifr'ame, of a base-plate integral with the said body and adapted for. the support and attachment thereto of the hoisting drum bearing frame, substantially as described.

THOMAS E. ADAMS. CLARENCE H. HOWARD.

Vitnesses tothe signature of Thomas E.

Adams:

P. M. KILROY, W. P. GOMME. l

Witnesses to the signature of Clarence Il.

Howard:

H. C. BELLVILLE, EDWARD W. FURRELL. 

